{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcde55f76e7c03103123350568fac50b70f2e9118ecc0943915e4bbb9318d1fc7",
    "signature": "0x1f9f4d8d1f09e36ef6c4dea6269c8ce569b5ac3b3b84fe1a04377c476dce7f177442dd38aca7cb2e5ac738f83ce4595d38712dfa34345b7d265a3d2dd1b530811c",
    "signer": "0x9976A5bDB93F69653188778fe013ed45ca0c2Ab1",
    "userId": "85051708"
  }
}